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Issue 6, 2014
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Solvent promoted reversible cyclometalation in a tethered NHC iridium complex

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Abstract

Reaction of [Ir(COD)(py–ItBu)]+ (py–ItBu = 3-tert-butyl-1-picolylimidazol-2-ylidene) with acetonitrile results in reversible intramolecular C–H bond activation of the NHC ligand and formation of [Ir(η21-C8H13)(py–ItBu′)(NCMe)]+. Coordinated COD acts as an internal hydride acceptor and acetonitrile coordination offsets the otherwise unfavourable thermodynamics of the process.

Graphical abstract: Solvent promoted reversible cyclometalation in a tethered NHC iridium complex

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Publication details

The article was received on 18 Oct 2013, accepted on 20 Nov 2013 and first published on 21 Nov 2013


Article type: Communication
DOI: 10.1039/C3CC48015A
Citation: Chem. Commun., 2014,50, 685-687
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    Solvent promoted reversible cyclometalation in a tethered NHC iridium complex

    J. E. Wheatley, C. A. Ohlin and A. B. Chaplin, Chem. Commun., 2014, 50, 685
    DOI: 10.1039/C3CC48015A

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